Re: Hashcash for IM2000
Ricardo SIGNES <[email protected]>
| Newsgroups | gmane.mail.im2000 |
|---|---|
| Message-ID | <[email protected]> |
* Wes Morgan <[email protected]> [2003-09-05T09:20:02] > I was reading an article on K5 about TMDA, and one of the commenters posted a > link to Hashcash (http://www.hashcash.org). This system looks really > promising. Does it? What keeps a spammer from computing a large number of hashes and then sending them in bulk? The FAQ says that hashes have an expiry. Is it less than a day? If each hash takes one second (let's assume the spammer has a whiz-bang PC) to compute, that's 86400 computed per day. Then the spammer sends them all within seconds or minutes... -- rjbs
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